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AR-10
9 April 2010, 21:46
Does anyone make an F marked FSB for a 0.625" barrel?

If not, can I just run an FSB off an A2 lightweight and replace the sight post with a taller one?
rob_s
10 April 2010, 06:55
there are f height .625" fsbs but I think they are very hard to come by. If you want a .625" barrel with a fixed FSB and a flattop other than a colt you're probably going to have to go with the taller post. Bushmaster sells one.
HeavyDuty
10 April 2010, 08:16
I bought two .625 "F" FSBs from CMMG a few months back, at they time they said they had plenty. They were about $30.
AR-10
10 April 2010, 12:33
Great, thanks for the info.

I wonder where Daniel Defense will be getting the ones that they are supplying on their lightweight barrels:

http://i43.tinypic.com/11hgbq0.jpg

I wouldn't think they had A2 owners in mind when they designed these but then again this is my first lightweight build so I don't know much about these parts.
TehLlama
10 April 2010, 12:40
Probably the same supplier CMMG uses, but I'd assume they did the parking and QC in-house.

The CMMG on my wife's is great, though the pinning needed a touch more work after I bought that upper (assembly issues from when their backorder wait was 8mo)
AR-10
10 April 2010, 12:56
I can't seem to find anything on CMMG's website, their website is strange.

I'm going to call them on Monday, thanks again for the info.
HeavyDuty
10 April 2010, 20:40
I can't seem to find anything on CMMG's website, their website is strange.

I'm going to call them on Monday, thanks again for the info.

Yeah, it's not on the website. I dealt with Angie via email.